EN 60309-2:1992
工业用插头-插座和耦合器.第2部分:外形一致管脚和导管附件尺寸互换性要求(IEC 309-2-89+勘误表 1992,修订)
Plugs, socket-outlets and couplers for industrial purposes; part 2: dimensional interchangeability requirements for pin and contact-tube accessories of harmonized configurations (IEC 309-2:1989 + corrigendum 1992, modified)